GPS作为间接基准鉴定精确导航系统的新方法

随着技术进步,精确导航系统与GPS处于同一精度,传统的直接比对法不再适用。为此,研究了一种新的间接法,以提高基准精度,满足鉴定要求。间接法是利用GPS天线阵测得多个基准值,然后采用最小二乘法,解出基准位置的精确值。编出了试验数据处理软件,客观准确地评估了精度性能。它已成功地用于某项精确导航系统的鉴定试飞中,对后续项目具有参考价值。

New Method of Precise Navigation System Evaluation with GPS as Indirect Reference

With the technology made progress, the precise navigation system is in same accuracy as GPS, and the traditional direct comparison method is not applicable anymore. The indirect method which can improve the reference accuracy and meet the requirements of evaluation is proposed. The principle of the indirect method is.. several reference values are measured with GPS antenna array, the precise value of the reference position is solved with least square method after the event. The experimental data processing software was programmed and then the accuracy performance was evaluated objectively and exactly. The indirect method has been applied successfully to a flight test for a precise navigation system in certain project and got some referential values beneficial to follow-up projects.